-LRB- CNN -RRB- -- A U.S. Navy submarine and a Navy amphibious ship that collided Friday in the Strait of Hormuz south of Iran have arrived in Bahrain to be assessed for damage , the Navy said .

The submarine USS Hartford and amphibious ship USS New Orleans are shown in Navy photos .

The submarine USS Hartford and amphibious ship USS New Orleans arrived Saturday in Mina Salman pier to `` to further assess and evaluate the damage that resulted from their collision at sea , '' the service said in a written statement .

Fifteen sailors were slightly hurt aboard the Hartford in the collision , which occurred early Friday morning .

On Friday , Navy officials in Washington told CNN that there was significant damage to the sail , or tower-like structure on the topside of the submarine . On Saturday , the Navy said there was no damage to the submarine 's propulsion unit .

No injuries were reported aboard the New Orleans . The ship 's fuel tank ruptured , spilling 25,000 gallons of marine diesel fuel in the Strait of Hormuz , the U.S. Navy said in the Saturday statement .

`` Aerial searches of the area where the fuel spill occurred were conducted yesterday , and revealed no indication of any remaining fuel on the ocean 's surface , '' the Navy said . `` The quick dissipation of the fuel is likely due to the type of fuel , and various environmental factors to include air and water temperatures , winds and seas . ''

When the collision occurred , both vessels were headed to ports in the Persian Gulf to stock up on provisions and allow for some recreation , Navy spokesman Lt. Nate Christensen said Friday .

Christensen said there were about 200 sailors in the sub and 1,000 sailors and Marines aboard the ship .

The Strait of Hormuz is located between the United Arab Emirates and Iran , linking the Gulf of Oman and the Persian Gulf . It is heavily used by oil tankers .

Both vessels are on regularly scheduled deployments to the U.S. Navy Central Command area of responsibility , and conduct Maritime Security Operations .

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Vessels in Bahrain `` to further assess and evaluate the damage , '' says Navy

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USS Hartford , USS New Orleans collided near Arabian Peninsula

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15 sailors on Hartford slightly injured

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Fuel tank on New Orleans ruptured , spilling 25,000 gallons of fuel